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Misuse and Abuse of Graphs & Charts Glen Whitman Dept. of Economics CSUN.

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Presentation on theme: "Misuse and Abuse of Graphs & Charts Glen Whitman Dept. of Economics CSUN."— Presentation transcript:

1 Misuse and Abuse of Graphs & Charts Glen Whitman Dept. of Economics CSUN

2 Beware of Pictograms: America’s Expanding Waistline Source: Women’s Health, May 2006

3 Beware of Pictograms: The Dominance of McDonald’s Source: http://www.princeton.edu/~ina/infographics/starbucks.htmlhttp://www.princeton.edu/~ina/infographics/starbucks.html

4 Beware of Pictograms: The Growth of Starbucks Source: http://www.princeton.edu/~ina/infographics/starbucks.htmlhttp://www.princeton.edu/~ina/infographics/starbucks.html

5 Slicing Up Pie Charts: Rampant Illegal Downloading? 1% slice = Estimated capacity of all iPod capacity filled by iTunes songs 99% slice = Estimated capacity of all iPod capacity not filled by iTunes songs Source: Wired, May 2006

6 Slicing Up Pie Charts: World Oil Reserves Source: Business Week, May 15, 2006

7 Slicing Up Pie Charts: Compared to What? Source: http://www.samefacts.com/archives/_/2006/06/pita_for_the_second_gilded_age.phphttp://www.samefacts.com/archives/_/2006/06/pita_for_the_second_gilded_age.php and http://agoraphilia.blogspot.com/2006/07/slicing-up-tax-pie.htmlhttp://agoraphilia.blogspot.com/2006/07/slicing-up-tax-pie.html

8 Pay Attention to the Scale: Are CSUN Professors Underpaid? Source: A flyer I found in the faculty mailroom

9 Pay Attention to the Scale: Changing Marital Norms Source: Business Week, October 20, 2003

10 Pay Attention to Scale: Weight Loss Products Source: unknown magazine; same data displayed at http://www.hydroxycut.com/MEN/PRODUCT_FACTS/HYD_24/index.shtml

11 Meaningless Line Graphs Source: Unknown, found in faculty mailroom


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